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Title: Associations between Genetically Predicted Circulating Protein Concentrations and Endometrial Cancer Risk.
Authors: Zhu J,  O'Mara TA,  Liu D,  Setiawan VW,  Glubb D,  Spurdle AB,  Fasching PA,  Lambrechts D,  Buchanan D,  Kho PF,  Cook LS,  Friedenreich C,  Lacey JV,  Chen C,  Wentzensen N,  De Vivo I,  Sun Y,  Long J,  Du M,  Shu XO,  Zheng W,  Wu L,  Yu H
Journal: Cancers (Basel)
Date: 2021 Apr 26
Branches: CGB
PubMed ID: 33925895
PMC ID: PMC8123478
Abstract: Endometrial cancer (EC) is the leading female reproductive tract malignancy in developed countries. Currently, genome-wide association studies (GWAS) have identified 17 risk loci for EC. To identify novel EC-associated proteins, we used previously reported protein quantitative trait loci for 1434 plasma proteins as instruments to evaluate associations between genetically predicted circulating protein concentrations and EC risk. We studied 12,906 cases and 108,979 controls of European descent included in the Endometrial Cancer Association Consortium, the Epidemiology of Endometrial Cancer Consortium, and the UK Biobank. We observed associations between genetically predicted concentrations of nine proteins and EC risk at a false discovery rate of <0.05 (p-values range from 1.14 × 10-10 to 3.04 × 10-4). Except for vascular cell adhesion protein 1, all other identified proteins were independent from known EC risk variants identified in EC GWAS. The respective odds ratios (95% confidence intervals) per one standard deviation increase in genetically predicted circulating protein concentrations were 1.21 (1.13, 1.30) for DNA repair protein RAD51 homolog 4, 1.27 (1.14, 1.42) for desmoglein-2, 1.14 (1.07, 1.22) for MHC class I polypeptide-related sequence B, 1.05 (1.02, 1.08) for histo-blood group ABO system transferase, 0.77 (0.68, 0.89) for intestinal-type alkaline phosphatase, 0.82 (0.74, 0.91) for carbohydrate sulfotransferase 15, 1.07 (1.03, 1.11) for D-glucuronyl C5-epimerase, and 1.07 (1.03, 1.10) for CD209 antigen. In conclusion, we identified nine potential EC-associated proteins. If validated by additional studies, our findings may contribute to understanding the pathogenesis of endometrial tumor development and identifying women at high risk of EC along with other EC risk factors and biomarkers.